Ania Ahlborn: Rosemary's Baby by Ira Levin. I love the concept of a happy life event taking a devilish turn. Rosemary's Baby should be on every horror-lovers must-read list.

Jeff Wheeler: The Elfstones of Shannara by Terry Brooks. I’ll never regret finding this book in 8th grade because it plunged me face-first into the fantasy genre and ignited the desire to be a storyteller myself. When I heard that MTV recently decided to produce a TV series starting with Elfstones, I was more than thrilled.

Richard Phillips: Ender’s Game by Orson Scott Card. In Ender’s Game, Scott Card weaves a fascinating tale of a very young, genetically engineered genius, subjected to horrendous and ever increasing pressure from his military trainers in order to create a commander that can save the earth from alien invaders. The action is intense and riveting, but the novel serves to illustrate the pressure packed meat grinder into which we thrust our own young military people on a day to day basis.

What's your favorite SF&F book of all time? Let us know in the comments below and click here to enter to win free Kindle versions of Rosemary's Baby, The Elfstones of Shannara, and Ender's Game. The first 20 readers to comment will receive the free ebooks, delivered directly to their accounts.